Underwriters Laboratories Inc.

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What is a UL Certificate?

When a Certificate is issued for an alarm system, it is the alarm company's declaration that the system will be installed, maintained, tested and monitored in accordance with applicable codes and standards.

Auditing Certificated systems

UL tracks each Certificate carefully. We visit every Listed alarm company at least once a year to audit Certificated systems. During the audit, service and alarm handling records are reviewed. In addition, UL alarm specialists randomely select a number of certificated installations and conduct a physical inspection. If noncompliace is found, the alarm company must rectify the problem or face cancellation of the Certificate.

Request a Certificate

It is important to ask for a Certificate when working with a UL Listed alarm company. UL only audits installed systems for which Certificates have been issued. Check our "Listed or Certificated?" page for more details on the difference between these designations.

What the Certificate contains

Each certificate identifies the type of alarm systems, the name and address of the property protected by the system, and the name and address of the alarm service company responsible for issuing the Certificate. A description of the equipment installed, its coverage and other protection details are included. Every certificate has a unique serial number, issue date and expiration date.

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